L40 CNX vs Radeon R6 M340DX

VS

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking790not rated
Place by popularitynot in top-100not in top-100
ArchitectureGCN 1.0 (2011−2020)Ada Lovelace (2022−2024)
GPU code nameJetAD102
Market segmentLaptopWorkstation
Release date12 December 2015 (8 years ago)13 October 2022 (2 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores38418176
Core clock speed955 MHz1005 MHz
Boost clock speed1030 MHz2475 MHz
Number of transistors690 million76,300 million
Manufacturing process technology28 nm4 nm
Power consumption (TDP)no data300 Watt
Texture fill rate24.721,406
Floating-point processing power0.791 TFLOPS89.97 TFLOPS
ROPs8192
TMUs24568
Tensor Coresno data568
Ray Tracing Coresno data142

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizemedium sizedno data
InterfaceIGPPCIe 4.0 x16
Lengthno data267 mm
Widthno data2-slot
Supplementary power connectorsno data1x 16-pin

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeSystem SharedGDDR6
Maximum RAM amountSystem Shared24 GB
Memory bus widthSystem Shared384 Bit
Memory clock speedSystem Shared2250 MHz
Memory bandwidthno data864.0 GB/s
Shared memory+-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsNo outputs1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI-+

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (11_1)12 Ultimate (12_2)
Shader Model5.16.7
OpenGL4.64.6
OpenCL1.23.0
Vulkan1.2.1311.3
CUDA-8.9

Pros & cons summary


Recency 12 December 2015 13 October 2022
Chip lithography 28 nm 4 nm

L40 CNX has an age advantage of 6 years, and a 600% more advanced lithography process.

We couldn't decide between Radeon R6 M340DX and L40 CNX. We've got no test results to judge.

Be aware that Radeon R6 M340DX is a notebook card while L40 CNX is a workstation one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


AMD Radeon R6 M340DX
Radeon R6 M340DX
NVIDIA L40 CNX
L40 CNX

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.7 37 votes

Rate Radeon R6 M340DX on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.3 7 votes

Rate L40 CNX on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.